{"created":"2023-05-15T14:44:59.664873+00:00","id":61491,"links":{},"metadata":{"_buckets":{"deposit":"22ea9086-6a7f-4fe7-a97c-f87b0e24078e"},"_deposit":{"created_by":1,"id":"61491","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"61491"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00061491","sets":["10:29"]},"author_link":["608432","608435","608428","608434","608431","608439","608433","608437","608438","608436","608427","608429","608430"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2004-11-06","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"PET画像の空間分解能は、視野中心から離れるほど低下する。分解能の低下を考慮した再構成法はいくつか提案されているが、臨床に使われるほど確立された方法はない。昨年度、日本核医学会において、視野中心から半径方向の距離rにより異なる面内検出器応答関数をOrdered Subsets-Expectation Maximization（OS-EM）に組み込む方法を提案し、断面内分解能の補正効果が確認できた。今回、さらに体軸方向の応答関数を追加した画像再構成法を検討し、3次元的に分解能の補正を試みる。まず、視野中心（r＝0）から断面内に異なる距離に点線源を設定したシミュレーションにおいて、距離により異なる体軸方向の応答関数D(r)を新たに推定する。次に、このD(r)を組み込んだ画像再構成法と従来のOS-EMを用いて画像再構成を行い、再構成画像の断面内に加えて体軸方向の分解能や、分解能とノイズの関係について比較し、提案手法の評価を行う。","subitem_description_type":"Abstract"}]},"item_10005_description_6":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"第44回日本核医学会学術大会","subitem_description_type":"Other"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"山川, 恵介"}],"nameIdentifiers":[{"nameIdentifier":"608427","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"北村, 圭司"}],"nameIdentifiers":[{"nameIdentifier":"608428","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"外山, 比南子"}],"nameIdentifiers":[{"nameIdentifier":"608429","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"上村, 幸司"}],"nameIdentifiers":[{"nameIdentifier":"608430","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"羽石, 秀昭"}],"nameIdentifiers":[{"nameIdentifier":"608431","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"村山, 秀雄"}],"nameIdentifiers":[{"nameIdentifier":"608432","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"内山, 明彦"}],"nameIdentifiers":[{"nameIdentifier":"608433","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山川 恵介","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"608434","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"北村 圭司","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"608435","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"外山 比南子","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"608436","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"上村 幸司","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"608437","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"羽石 秀昭","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"608438","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"村山 秀雄","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"608439","nameIdentifierScheme":"WEKO"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"conference object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"断面内および体軸方向の応答関数を考慮したPET画像の空間分解能向上に関する研究","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"断面内および体軸方向の応答関数を考慮したPET画像の空間分解能向上に関する研究"}]},"item_type_id":"10005","owner":"1","path":["29"],"pubdate":{"attribute_name":"公開日","attribute_value":"2006-06-14"},"publish_date":"2006-06-14","publish_status":"0","recid":"61491","relation_version_is_last":true,"title":["断面内および体軸方向の応答関数を考慮したPET画像の空間分解能向上に関する研究"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T21:41:48.775732+00:00"}